Hi,
Just about the only thing I don't like on my DEX210 is the nasty sharp battery thumb screws
I can see them scratching the body (as they are VERY close) and hurting my fingers when doing up. Also, I don't think they are going to be easy to fiddle with when getting to the grid in a rush. (I don't like the Associated ones either, although they are smoother.)
After half an hour on the lathe and piller drill, this was my solution. Quick and easy and adds no extra weight. If you don't have the above tools, at least I may have given somebody an idea. Maybe you know of something you could butcher ?
I added a small piece of soft Velco to the underside of the battery strap so it has a little 'give' when pushing down for the R clip.